Where a prisoner in a medical-malpractice claim in federal court was not required to submit a physician’s report and affidavit attesting to the merit of his claim, as required under Illinois law, until the summary judgment stage.The 7th U.S. Circuit Court of Appeals affirmed a decision by U.S. District Judge J. Phil Gilbert, Southern District of Illinois.Reginald Young, a federal prisoner, filed suit alleging that physicians at his prison committed malpractice by not performing or authorizing surgery to correct a …